Home / 862,271.92-1,189,971.94-480,298.88

Finding the Fourth Proportional to 862,271.92, 1,189,971.94 and 480,298.88

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Solution

The fourth proportional to 862,271.92, 1,189,971.94 and 480,298.88 is: 662,832.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,271.92 : 1,189,971.94 = 480,298.88 : x
  2. Step 2: Convert to fraction form
    862,271.92/1,189,971.94 = 480,298.88/x
  3. Step 3: Cross multiply
    862,271.92x = 1,189,971.94 × 480,298.88
  4. Step 4: Simplify right side
    862,271.92x = 571,542,190,013.43
  5. Step 5: Solve for x
    x = 571,542,190,013.43/862,271.92
  6. Step 6: Final answer
    x = 662,832.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.